which is a “big idea” for space and time?

energy can be transferred but not destroyed.

forces describe the motion of the universe.

the universe consists of matter.

the universe is very big and very old.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

True or false graphs must include scales that increase by the same amount

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?